PHOTOIONIZATION EXPERIMENTS WITH AN ATOMIC-BEAM OF TUNGSTEN IN THE REGION OF THE 5P AND 4F EXCITATION

Authors
SLADECZEK P FEIST H FELDT M MARTINS M ZIMMERMANN P
Citation
P. Sladeczek et al., PHOTOIONIZATION EXPERIMENTS WITH AN ATOMIC-BEAM OF TUNGSTEN IN THE REGION OF THE 5P AND 4F EXCITATION, Physical review letters, 75(8), 1995, pp. 1483-1486
Citations number
13
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
75
Issue
8
Year of publication
1995
Pages
1483 - 1486
Database
ISI
SICI code
0031-9007(1995)75:8<1483:PEWAAO>2.0.ZU;2-L
Abstract
An atomic beam of tungsten and photoexcitation with monochromatized sy nchrotron radiation were used to measure the first photoion yield spec tra of W+ and W2+ in the region of 30-60 eV. The comparison with calcu lated photoionization cross sections shows that the resonance structur e can be explained by discrete 5p --> 5d, 6s and 4f --> 5d transitions if one takes into account the thermal population of the initial state s 5d(4)6s(2) D-5(0,1,2,3,4) and 5d(5) 6s S-7(3).